What you want to ask is the reason why Xu Dong Group app can't log in? The reason for this is the following：

1, Xu Dongqun app, password entered incorrectly or account has been stolen by others. You can check whether the account password is correct and then log in again.

2. Xu Dongqun app, if you enter the correct password but can't log in, it is because the network is not smooth or the network data switch of the mobile phone system is turned off, you can check the network and log in again.